Futurologist Ian Pearson also predicts "drone swarms" will be used to beef up people's social media pictures.

Millions currently take selfies after a gym workout and post them on Instagram.

But Mr Pearson said the images will be improved by drones which will be able to take pictures in real time from impossible angles.

In his report, commissioned by Fitness First, Mr Pearson said: "The rapid development of technology means that in the near future we can expect to see many more people engaging in activity that will directly benefit the health of the nation.”

(Image: Instagram)

He said gym users would be able to adjust their technique by watching video streamed directly to digital eyewear and will be able to post video and commentary directly to social channels during a work out.

Lee Matthews, from Fitness First, said: "Personal recognition really motivates a number of people - a trend we've seen take off in recent years.

"But the benefits are much broader, being able to monitor your movement in real time, replay video and break down technique will mean that performance will improve exponentially.”

Mr Pearson also foresees the creation of "gym-bots" which would bring extraordinarily life-like movement and performance to a sparring session.

The Tyson Fury or Anthony Joshua of the future would be able to land their heaviest punches on a gym-bot without worrying about inflicting serious injuring on a sparring partner.

Gym-bots could come out as jogging partners to ease the loneliness of the long-distance runner or could act as pacemakers or even personal trainers.

Mr Pearso predicts other advances to make going to the gym less boring.

Virtual reality software could enable people to run on an imaginary beach or through a forest from the comfort of their treadmill or be joined by friends, relatives and social media acquaintances from all around the world.

(Image: Fitness First)

Mr Matthews added: “You could be white river rafting with your friend who lives in Australia, all from the comfort of your gym in England. Equally, members could choose to run the London Marathon with Mo Farah or cycle with Victoria Pendleton."

Mr Pearson predicts new technology which will allow state-of-the-art monitoring through the skin, linking the nervous system to an external computer.

It would enable serious athletics and fitness freaks to check their heart rates and blood pressure and improve their performance